Sentry Lockdown issue

Hi i am trying to accessing the sentry though setup with docker but facing lockdown and timeout issues.

2019-12-23 08:08:08.636 WARN 1 — [pool-1-thread-1] i.s.c.AbstractConnection.lockdown : Initiated a temporary lockdown because of exception: An exception occurred while submitting the event to the Sentry server.
2019-12-23 08:08:08.637 ERROR 1 — [pool-1-thread-1] io.sentry.connection.AsyncConnection : An exception occurred while sending the event to Sentry.

io.sentry.connection.ConnectionException: An exception occurred while submitting the event to the Sentry server.
at io.sentry.connection.HttpConnection.doSend(HttpConnection.java:216) ~[sentry-1.7.27.jar!/:na]
at io.sentry.connection.AbstractConnection.send(AbstractConnection.java:76) ~[sentry-1.7.27.jar!/:na]
at io.sentry.connection.AsyncConnection$EventSubmitter.run(AsyncConnection.java:185) ~[sentry-1.7.27.jar!/:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]
Caused by: java.net.SocketTimeoutException: connect timed out